Verolet, Quentin published the artcileDesign and Synthesis of Mixed Oligomers with Thiophenes, Dithienothiophene S,S-Dioxides, Thieno[3,4]pyrazines and 2,1,3-Benzothiadiazoles: Flipper Screening for Mechanosensitive Systems, Recommanded Product: 2,5-Dibromo-3,4-dinitrothiophene, the publication is ChemistryOpen (2015), 4(3), 264-267, database is CAplus and MEDLINE.
Monomers with large surface area and high quantum yield, that was fluorescent flippers, were engineered into twisted push-pull oligomers to create membrane probes with high mechanosensitivity and long fluorescence lifetime. The synthesis and characterization of thieno[3,4]pyrazines and 2,1,3-benzothiadiazoles were described in comparison with the original dithienothiophene S,S-dioxides. Dithienothiophene S,S-dioxide flippers were confirmed as the best reported so far, and poor results with single flipper probes support that two flippers were needed for the probe to really ‘swim’ i.e., for high mechanosensitivity.
ChemistryOpen published new progress about 52431-30-8. 52431-30-8 belongs to bromides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 2,5-Dibromo-3,4-dinitrothiophene, and the molecular formula is C13H10F2, Recommanded Product: 2,5-Dibromo-3,4-dinitrothiophene.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary